11001323123131 has 6 divisors (see below), whose sum is σ = 12092363432996. Its totient is φ = 10001202839100.

The previous prime is 11001323123053. The next prime is 11001323123149. The reversal of 11001323123131 is 13132132310011.

It is not a de Polignac number, because 11001323123131 - 2¹⁵ = 11001323090363 is a prime.

It is a super-2 number, since 2×11001323123131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11001323127131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45460012785 + ... + 45460013026.

Almost surely, 2^{11001323123131} is an apocalyptic number.

11001323123131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001323123131 is a deficient number, since it is larger than the sum of its proper divisors (1091040309865).

11001323123131 is an equidigital number, since it uses as much as digits as its factorization.

11001323123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90920025833 (or 90920025822 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11001323123131 its reverse (13132132310011), we get a palindrome (24133455433142).

The spelling of 11001323123131 in words is "eleven trillion, one billion, three hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty-one".